oh no, the upside isn't about looks. It's about safety.
If we're corresponding on P411 and I've checked out your picture, and then we meet a few days or weeks later and I look through the keyhole and it's NOT the one in the picture, I'm not opening the door.
It's a safeguard against LE getting a gentleman's P411 ID and password.
I suppose LE could take down his picture and put up their agent's, so the longer we've been corresponding, the better.